//
//  UIViewController+iOS13.h
//  SchoolApp
//
//  Created by 姜孟东 on 2020/2/3.
//  Copyright © 2020 znz. All rights reserved.
//




#import <UIKit/UIKit.h>

NS_ASSUME_NONNULL_BEGIN

@interface UIViewController (iOS13)

@end

NS_ASSUME_NONNULL_END
